CN108124145A - A kind of method and device for projector equipment - Google Patents
A kind of method and device for projector equipment Download PDFInfo
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- CN108124145A CN108124145A CN201611092313.XA CN201611092313A CN108124145A CN 108124145 A CN108124145 A CN 108124145A CN 201611092313 A CN201611092313 A CN 201611092313A CN 108124145 A CN108124145 A CN 108124145A
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- Prior art keywords
- display interface
- information
- focal length
- interface information
- projector equipment
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/317—Convergence or focusing systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Abstract
The invention discloses a kind of methods for projector equipment, obtain the first display interface information；Obtain the distance of projector equipment and display interface；First focal length is determined according to the distance and the first display interface information, is first focal length by the Focussing of lens.The present invention also discloses a kind of devices for projector equipment.
Description
Technical field
The present invention relates to projection art more particularly to a kind of method and devices for projector equipment.
Background technology
Projector equipment is a kind of equipment that can be projected image or video on curtain, is widely used in family, office
Room, school and public place of entertainment etc..Existing projector equipment is under different use environments, it is necessary to change the focal length of camera lens to obtain
Optimal image projection effect.The projector equipment includes projecting apparatus, the mobile phone with projecting function and filmslide player etc.
Deng.
The focal length of camera lens cannot be automatically adjusted for most of projector equipment to ensure the clarity of Projection Display.Therefore,
When opening projector equipment and carrying out image projection, it usually needs adjust manually the lens focus of projector equipment, picture size and
Position, it is clear in order to ensure projection display picture, it is required for every time by multiple zoom and adjustment；For often converting projection
The user of equipment or use environment is, it is necessary to frequently adjust the focal length of camera lens, and this manual mode for adjusting lens focus is very
Inconvenience, and because adjusting can bring larger error manually, it is impossible to ensure to adjust the focal length of lens to optimum position, so as to
Optimal image projection effect can not be obtained.
For the method with adjustment projected size adaptive at present, projector equipment is needed while changing the focal length of camera lens, on one side
Whether the corner of detection projected picture overlaps with view field, to determine whether continuing the focal length of change camera lens, until image is big
Until small adaptation curtain, focusing is completed, although this method is also required to multiple adjustment, expends than manually adjusting conveniently
Time is longer, and can not preferably be focused for non-rectangle curtain.
The content of the invention
It in view of this, can be conveniently fast an embodiment of the present invention is intended to provide a kind of method and device for projector equipment
It is focused promptly to view field.
In order to achieve the above objectives, the technical solution of the embodiment of the present invention is realized in：
The present invention provides a kind of method for projector equipment, the described method includes：
Obtain the first display interface information；
Obtain the distance of projector equipment and display interface；
First focal length is determined according to the distance and the first display interface information, is institute by the Focussing of lens
State the first focal length.
In said program, the distance for obtaining projector equipment and display interface, including：
It is projected to display interface, obtains the second display interface information after projection, determine that lens current focus is burnt for second
Away from determining the distance of the projector equipment and display interface according to the projection size and the second focal length.
In said program, the first display interface information of the acquisition includes：
Display interface picture is obtained, it is aobvious to be handled to obtain described first to the display interface picture according to setting rule
Show interface information.
In said program, after the first display interface information of the acquisition, further include：
It is projected to display interface, the 3rd display interface information after the projection is obtained, according to the 3rd display interface
Information revision the first display interface information.
In said program, after the Focussing by lens is first focal length, further include：
It is projected to display interface, when the display interface of projection and the first display interface information mismatch,
It is projected again to the display interface, obtains the 4th display interface information after the projection, it is current to obtain lens
Focal length is the 3rd focal length, according to the 4th display interface information and the 3rd focal length determine projector equipment and display interface away from
From；
4th focal length is determined according to the distance and the first display interface information of the projector equipment and display interface
Value, by the Focussing of lens be the 4th focal length；
Until when the display interface and the first display interface information match of projection, terminate adjustment.
The present invention also provides a kind of device for projector equipment, described device includes：Acquisition module, zoom modules；
Wherein,
The acquisition module for obtaining the first display interface information, obtains the distance of projector equipment and display interface；
The zoom modules, will for determining the first focal length according to the distance and the first display interface information
The Focussing of lens is first focal length.
In said program, the acquisition module is additionally operable to：
It is projected to display interface, obtains the second display interface information after the projection, determine lens current focus for the
Two focal lengths determine the distance of the projector equipment and display interface according to the projection size and the second focal length.
In said program, the acquisition module includes：Information acquisition module, image processing module, wherein,
Described information acquisition module, for obtaining display interface picture；
Described image processing module, for being handled to obtain described the to the display interface picture according to setting rule
One display interface information.
In said program, the acquisition module further includes：
Correcting module for being projected to display interface, obtains the 3rd display interface information after the projection, according to described
3rd display interface Information revision the first display interface information.
In said program, described device further includes detection module,
The detection module is used for, and is projected to display interface, the display interface of projection and the first display interface information
During mismatch, acquisition module is notified；
The acquisition module is additionally operable to project to the display interface again, obtains the 4th display circle after the projection
Face information, it is the 3rd focal length to obtain lens current focus, determines to project according to the 4th display interface information and the 3rd focal length
The distance of equipment and display interface；
The zoom modules are additionally operable to the distance according to the projector equipment and display interface and first display interface
Information determines the value of the 4th focal length, is the 4th focal length by the Focussing of lens.
The method and device for the adjustment view field that the embodiment of the present invention is provided, obtains the first display interface information；It obtains
Take the distance of projector equipment and display interface；First focal length is determined according to the distance and the first display interface information,
It is first focal length by the Focussing of lens.It can be seen that the embodiment of the present invention makes one successive step of focal length in place, reduce manually
The inconvenience of lens focus is adjusted, reduces the large error for adjusting have manually, it is ensured that adjusts the focal length of lens to most
Best placement so as to quickly obtain optimal image projection effect in the case that time saving, can be realized and be directly changed Focussing
Projected size can reach the effect settled at one go.Also, the present invention can be obtained aobvious automatically by the analysis to display interface
Show display location optimal on interface and size, the projected area of better quality can also be selected for irregular display interface
Domain.The present invention can be used for the projector equipment of most of support zoom projecting function, and adapt to most environment, such as meeting
Room, theater etc..And practical function of the present invention, implementation method is simple, and independence is strong.
Description of the drawings
Fig. 1 is the realization flow diagram for the method that the embodiment of the present invention one adjusts view field；
Fig. 2 is the realization flow diagram for the method that the embodiment of the present invention two adjusts view field；
Fig. 3 is the schematic diagram for obtaining display interface in the present invention in regular rectangular shape；
Fig. 4 is the schematic diagram that another kind obtains display interface in regular rectangular shape in the present invention；
Fig. 5 is the schematic diagram for obtaining display interface in the present invention in the irregular rectangle for collecting three faces；
Fig. 6 is to block the schematic diagram that display interface is obtained in rectangle having in the present invention；
Fig. 7 is the schematic diagram for obtaining display interface in the present invention in irregular figure；
Fig. 8 is the schematic diagram for obtaining display interface in the present invention in irregular figure；
Fig. 9 is the schematic diagram that the first display interface is corrected in the present invention；
Figure 10 is the composition structure diagram for the device that the embodiment of the present invention three adjusts view field；
Figure 11 is the composition structure diagram for the device that the embodiment of the present invention four adjusts view field.
Specific embodiment
In the embodiment of the present invention, the first display interface information is obtained；Obtain the distance of projector equipment and display interface；According to
The distance and the first display interface information determine the first focal length, are first focal length by the Focussing of lens.
Wherein, the first display interface information can be obtained by a variety of methods, including：Can be that projector equipment stores
The interface information known；It can also be projector equipment shooting view field, then pass through the image information of the view field to shooting
It carries out analysis and draws the first display interface information.The distance of the projector equipment and display interface can be that projector equipment measures
Go out or call storage before used distance；It can also be that projector equipment is analyzed according to the focal length of lens to throw
Shadow picture is drawn.After determining first focal length, projector equipment carries out zoom, and focal length is made to change into first focal length, realizes
The change of projected size.
Further, the distance of the projector equipment and display interface is obtained according to the focal length of lens to be included：To display interface
Projection obtains the second display interface information after projection, lens current focus is determined as the second focal length, according to the projection size
The distance of the projector equipment and display interface is determined with the second focal length.
Further, the first display interface information of the acquisition includes：Projector equipment obtains display interface picture, according to setting
Set pattern then handles the display interface picture to obtain the first display interface information.Wherein, the setting rule is used
It is calculated according to image information, determines the boundary information at interface, can be included：Horizontal positioned rectangle or square or
The graphical information of circle etc..
Further, after the first display interface information of the acquisition, the method further includes：It projects, obtains to display interface
The 3rd display interface information after the projection is taken, according to the 3rd display interface Information revision the first display interface information.
Here, because the length and width of projected image are usually fixed, and obtain interface information in length and width be then it is unfixed, it is necessary to
According to the length-width ratio that projection obtains, to correct the interface information of projection.
Further, the Focussing by lens is after first focal length, the method further includes：To display circle
Face projects, and when the display interface of projection and the first display interface information mismatch, repeats following step until the institute of projection
State display interface and the first display interface information matches：
It is projected again to the display interface, obtains the 4th display interface information after the projection, determine that lens are current
Focal length is the 3rd focal length, according to the 4th display interface information and the 3rd focal length determine projector equipment and display interface away from
From；
4th focal length is determined according to the distance and the first display interface information of the projector equipment and display interface
Value, by the Focussing of lens be the 4th focal length；
When the display interface of projection and the first display interface information match, terminate adjustment.
Wherein, after changing the focal length of lens, projector equipment can be by shooting display interface picture, and whether detection projected image
It is overlapped with display interface, if overlapped, terminates adjustment；If misaligned, continue to adjust.
Here, position and/or size of the first display interface information for display interface.The second display interface letter
Breath, the 3rd display interface information, position and/or the size that the 4th display interface information is the picture being projected on display interface.
Embodiment one
In the present embodiment, the realization flow of method of view field is adjusted as shown in Figure 1, comprising the following steps：
Step 101, the first display interface information is obtained；
Specifically, the first display interface information includes：Curtain position and/or size or display interface in display interface
According to setting Rule curtain position and/or size.First display interface information can be obtained by a variety of methods, bag
It includes：Can be the known interface information of projector equipment storage, including：Used first display interface before storage
The first display interface information that the user of information or storage inputs to projector equipment；It can also be projector equipment shooting projected area
Then domain carries out analysis by the image information of the view field to shooting and draws the first display interface information.
Wherein, to shoot view field, projector equipment can be arranged on fixed position, takes projector equipment
View field analyzes the image information of the view field of acquisition, is become image information according to information such as color and positions
Change matrix expression into.The image information that matrix represents is obtained into the border in image information by edge detection, and in border
The graphical information of setting rule is determined for compliance with as the first display interface information.
Specifically, the method for edge detection includes：The processing of Tuscany (canny) operator, Laplce (Laplacian) operator
Processing, the processing of Sobel (Sobel) operator etc..Setting rule includes：Horizontal positioned rectangle or square or circle etc.
Graphical information.
Step 102, the distance of the projector equipment and display interface is obtained；
Specifically, the distance of the projector equipment and display interface can be drawn or thrown by projector equipment measurement
The projector equipment and the distance of display interface obtained before the storage of shadow equipment, can also be that projector equipment is burnt according to lens
It is drawn away from analysis projected picture.
Step 103, the first focal length is determined according to the distance and the first display interface information, by the focal length of lens
It is adjusted to first focal length；
Specifically, the distance of the projector equipment and display interface can be obtained by step 102, first display interface
Information can be obtained by step 101, determine the first focal length：Here have,
L=W1*f1/w
Wherein：L represents the distance of projector equipment and display interface；
W1 represents the size of the first display interface；
F1 represents the first focal length (focal length of projector equipment camera lens)；
W represents the size of charge coupled cell (CCD, Charge-Coupled Device) in projector equipment.
The first display interface information is specially W1, and therefore, W1 is what is acquired in step 101, and L obtains for measurement
, the size w of CCD is known in projector equipment, it is known that above- mentioned information can calculate the focal length size for needing zoom
One focal length f1.After the first focal length is obtained, projector equipment can realize zoom by adjusting the focal length of lens, by Focussing
For obtained focal length size f1.After the completion of adjustment, method that can also be by shooting display interface picture, to check projection image
Whether match with the first interface information, there are many ways to matching, such as completely the same or setting error amount, by mistake
Being regarded as within difference is matched.If matched, stop adjusting；If they do not match then continue to adjust, until
Match somebody with somebody.If it is determined that the first interface information and projector equipment that obtain are not the positions faced, then need to rectify by trapezoidal at this time
Normal operation method is modified projection interface.
Wherein, the first display interface information is the position of curtain in display interface and/or size or display interface
According to setting Rule curtain position and/or size.
Embodiment two
In the present embodiment, it is contemplated that the first display interface information of easier, quick acquisition can obtain display interface
Then picture handles display interface picture to obtain the first display interface information by setting rule；In view of simpler
Just the distance of projector equipment and display interface, is quickly obtained, the second display interface information and the second focal length can be obtained first,
It is known
L=W1*f1/w
Can have
L=W2*f2/w
The size of the distance L of projector equipment and display interface can be quickly determined by above-mentioned formula；And based on above-mentioned
Formula, further can be when first time adjustment falls flat, and projector equipment can be adjusted repeatedly, to reach
Desired effect.The realization flow of the method for the present embodiment adjustment view field is as shown in Fig. 2, comprise the following steps：
Step 201, display interface picture is obtained, the display interface picture is handled to obtain institute according to setting rule
State the first display interface information；
Specifically, gathering image information for shooting view field, such as curtain, projector equipment can be fixed, sets projection
It is standby to take display interface, the image information of the view field of acquisition is analyzed, according to information such as color and positions
Image information conversion is represented into matrix.
Here, the image information of acquisition is handled, first converts pixel information；Again to the seat of Pixel Information and pixel
Cursor position information is handled, and obtains corresponding matrix；Obtained matrix information can provide numerical basis for subsequent process.
The image information that matrix represents is obtained into the border in image information by edge detection process, is obtained in border and meets setting
The graphical information of rule, as the first display interface information.The method of edge detection includes：The processing of Tuscany (canny) operator is drawn
Pula this (Laplacian) operator processing, the processing of Sobel (Sobel) operator etc..Meet the graphical information bag of setting rule
It includes：Horizontal positioned rectangle or the graphical information of square or circle etc..
Specifically, for obtained matrix information, the rectangular information of rule, irregular square can be obtained after treatment
Battle array information or irregular graphical information, as shown in FIG. 3 to 7, inside the image information of acquisition, it is necessary to the edge of identification and
Gray-value variation is larger at non-edge, by carrying out binary conversion treatment to image；Obtain image pixel matrix value, to image into
Row edge detection, the edge detection mainly using the larger position of gray-value variation in the image of extraction as boundary line, this
In canny edge algorithms may be employed, specifically include：Gaussian filtering is primarily based on to be smoothed image；Then base again
The amplitude of gradient and direction are calculated in the finite difference of single order local derviation；Non-maxima suppression is carried out to the amplitude of gradient again；Most
Border is obtained with dual threashold value-based algorithm afterwards, gets regular rectangular shape 31, regular rectangular shape 41, irregular rectangle 51, irregular figure 61
With irregular rectangle 71, as shown in FIG. 3 to 7.
The size and the position that obtain the display interface inside the matrix information of the acquisition can be handled again by calculating
It puts.
Wherein, the shape of the display interface inside the matrix information of the acquisition can be rectangle or circle
Shape, size, which can be the largest, may also be predefined size, and position can horizontal positioned can also tiltedly be placed.
Preferably, the method signal of the acquisition display interface in regular rectangular shape can as shown in Figure 3,4, if edge is examined
It is obtained after survey that maximum positive regular rectangular shape 32,42 is obtained in regular rectangular shape 31,41 when being regular rectangular shape, it is acquired
The information of positive regular rectangular shape 32,42 is the first display interface information；It is aobvious that first is obtained in irregular rectangle or irregular figure
Show that the method signal of interface information can as shown in Figs. 5 to 7, in example, the irregular rectangle in Fig. 5 only collects three borders
Information, the irregular rectangle part in Fig. 6 are blocked, and are irregular figure in Fig. 7, if obtained right and wrong after edge detection
When regular rectangular shape or irregular figure, the coordinate information of wherein all the points can be obtained, therefrom selects four points by rule, four
The coordinate of point can be as shown in figure 8, be expressed as (x1, y1), (x1, y2), (x2, y1), (x2, y2), then to choose this four points
It is regular rectangular shape 52,62,72 that graphics area maximum is formed after connection, and the information of acquired regular rectangular shape 52,62,72 is
First display interface information；
Step 202, projected to display interface, obtain the 3rd display interface information after projection, according to the described 3rd display
Interface information corrects the first display interface information.
Specifically, correct the first display interface information, the length-width ratio of such as display interface and the signal of position as shown in figure 9,
The first display interface information is had been obtained in step 201, and for the projector equipment of part, the length-width ratio of projection is fixed
, and the length-width ratio in the first interface information obtained in above-mentioned steps may not be fixed, in this regard, projector equipment is to display
Interface projects, and obtains the 3rd display interface information after the projection, the i.e. length-width ratio of projection, corrects first and shows
Length-width ratio in interface information.Revised length-width ratio be definite value, position can there are many.
It is true based on the first display interface information for the first display interface information obtained in step 201
Fixed display interface is there may be multiple, it is necessary to choose optimal position as display interface, and projector equipment first is to display circle
Face projects, and obtains and projects generated image, and the 3rd display interface information is obtained by carrying out processing to described image, wherein the
Three display interface information include：Handle position and the size of obtained projected picture；It is true according to the 3rd display interface information
The center of display interface is determined for the first center, and the center of display interface is determined according to the first display interface information
Position is the second center, by comparing the position relationship of the first center and the second center, determines display interface
Center.
Specifically, the center of display interface is determined according to the 3rd display interface information as A points 91, likewise,
Likewise, the center of display interface is determined as B points 92 according to the first display interface information, by comparing A points 91 and B
The position relationship of point 92,
If A points 91, on the upper left side of B points 92, display interface can select the position in the first display interface information
Upper left side, centered on A points 91；If A points 91, in the lower left of B points 92, display interface can be selected in the first display
The lower left of position in interface information, centered on A points 91；If A points 91, in the upper right side of B points 92, display interface can
To select the upper right side of the position in the first display interface information, centered on A points 91；If A points 91 are in the bottom right of B points 92
Side, then display interface can select the lower right of the position in the first display interface information, centered on A points 91；
If A points 91, in the surface of B points 92, display interface can select the position in the first display interface information
Surface, centered on A points 91；If A points 91, in the underface of B points 92, display interface can be selected in the first display
The underface of position in interface information, centered on A points 91；If A points 91, in the front-left of B points 92, display interface can be with
Selection in the first display interface information the front-left of position, centered on A points 91；If A points 91 in the front-right of B points 92,
Then display interface can select in the first display interface information the front-right of position, centered on A points 91.If A points 91 and B
The position of point 92 overlaps, then can not correct the center of display interface.
More preferably, first length-width ratio in the 3rd display interface information the length-width ratio of the first display interface can be corrected,
Then the center 92 in the first display interface information is corrected further according to the center in the 3rd display interface information, is passed through
Above-mentioned amendment can obtain better first display interface information so that the position of obtained display interface and size all more with
Actual view field is consistent.
Step 203, projected to display interface, obtain the second display interface information after the projection, determine that lens are current
Focal length determines the distance of the projector equipment and display interface according to projection size and second focal length as the second focal length；
Specifically, in view of easier, the quick distance for obtaining projector equipment and display interface, it can be to display circle
Face is projected, and obtains the second display interface information after projection, and the current focus for obtaining lens passes through as the second focal length
The the second display interface information obtained and the second focal length, it may be determined that the distance of the projector equipment and reality interface.It is known
L=W1*f1/w
Can have
L=W2*f2/w
The size of the distance L of projector equipment and display interface can be calculated by above-mentioned formula, and can be determined described
The distance of projector equipment and display interface.
Step 204, determined according to the distance and the first display interface information of the projector equipment and display interface
The Focussing of lens is first focal length by the first focal length.
Specifically, the distance of the projector equipment and display interface can be obtained by step 203, the first display interface information
It can be obtained by step 201 and 202.Determine the first focal length：Here have,
L=W1*f1/w
Wherein：L represents the distance of projector equipment and display interface；
W1 represents the size of the first display interface；
F1 represents the first focal length (focal lengths of projector lens)；
W represents the size of CCD in projecting apparatus.
The first display interface information is specially W1, and therefore, W1 is that step 201 and step 202 obtain, and L is step
203 acquisitions, the size w of CCD is known in projector equipment, it is known that above- mentioned information, which can be obtained by, needs the focal length of zoom big
Small first focal length f1.After the first focal length is obtained, projector equipment can realize zoom by adjusting the focal length of lens, by focal length
It is adjusted to the focal length size f1 being obtained.
Step 205, projected to the display interface, determine projection interface and the first display interface information whether
Match somebody with somebody, if it does, then terminating current process；Step 203 is performed if it does not match, returning.
Specifically, at this moment can also by the method for shooting, come check projection interface whether with the first interface information phase
Match somebody with somebody, there are many ways to matching, such as completely the same or setting error amount, it is regarded as matching within error amount
's.If the projection and the first display interface information matches, stop adjusting；If the projection is believed with the first display interface
Breath mismatches, then returns to step 203, is projected again to the display interface, obtains the 4th display circle after the projection
Face information determines that lens current focus for the 3rd focal length, determines to project according to the 4th display interface information and the 3rd focal length
The distance of equipment and display interface；It is true according to the distance and the first display interface information of the projector equipment and display interface
The value of the 4th focal length is made, is the 4th focal length by the Focussing of lens, until the projection is believed with the first display interface
Breath matching.The first interface information and projector equipment that sometimes obtain are not the positions of face, at this moment need to pass through trapezoidal correction
Algorithm is modified projection interface.
Here, position and/or size of the first display interface information for display interface.The second display interface letter
Breath, the 3rd display interface information, position and/or the size that the 4th display interface information is the picture being projected on display interface.
Embodiment three
The present embodiment is the device using one the method for embodiment, and the present embodiment adjusts the composition of the device of view field
Structure is as shown in Figure 10, and the device of the adjustment view field includes：Acquisition module 1001, zoom modules 1002；Wherein,
The acquisition module 1001, for obtaining the first display interface information；Obtain projector equipment and display interface away from
From；
The zoom modules 1002, for determining that first is burnt according to the distance and the first display interface information
Away from, by the Focussing of lens be first focal length.
Specifically, the first display interface information includes：Curtain position and/or size or display interface in display interface
In middle curtain according to setting Rule position and/or size.The acquisition module 1001 obtains the first display interface letter
Breath can by a variety of methods, including：Can be the known interface information of storage, including：Before the use of time preserve the
One display interface information or the first display interface information of input；It can also be projector equipment shooting view field, then pass through
Analysis is carried out to the image information of the view field of shooting and draws the first display interface information.
The acquisition module 1001, specifically for measuring the distance of the projector equipment and display interface；It is deposited alternatively, calling
Used distance before storage；Alternatively, according to the focal length of projected picture and current lens obtain the projector equipment with
The distance of display interface.
Specifically, the distance and the first display interface information of the projector equipment and display interface are by the acquisition mould
Block 1001 obtains, and determines the first focal length：Here have,
L=W1*f1/w
Wherein：L represents the distance of projector equipment and display interface；
W1 represents the size of the first display interface；
F1 represents the first focal length (focal length of projector equipment camera lens)；
W represents the size of CCD in projector equipment.
The first display interface information is specially W1, therefore, is acquired in the W1 acquisition modules 1001, L
Measurement obtains, and the size w of CCD is known in projector equipment, it is known that the coke for needing zoom can be obtained in above- mentioned information
Away from the first focal length of size f1.After the zoom modules 1002 acquire the first focal length, projector equipment can be by adjusting lens
Focal length realize zoom, be the focal length size f1 being obtained by Focussing.It, can also be by shooting display interface after the completion of adjustment
The method of picture, to check whether projection image matches with the first interface information, there are many ways to matching, such as completely
Unanimously or setting error amount, being regarded as within error amount are matched.If matched, stop adjusting；If no
Match, then continue to adjust, until matching.The first interface information and projector equipment that sometimes obtain are not the positions faced
It puts, at this moment needs to realize the projection of image by trapezoidal correction algorithm.
Wherein, position and/or size of the first display interface information for display interface.
The acquisition module 1001 is additionally operable to：It is projected to display interface, obtains the second display interface information after projection, really
Fix-focus lens current focus is the second focal length, and the projector equipment and display interface are determined according to the projection size and the second focal length
Distance.
Example IV
The present embodiment is the improvement that structure is formed using embodiment three, and the present embodiment adjusts the composition of the device of view field
Structure is as shown in figure 11, the acquisition module 1001, including：Information acquisition module 1102, image processing module 1103；Wherein,
Described information acquisition module 1102, for obtaining display interface picture；
Described image processing module 1103, for being handled to obtain institute to the display interface picture according to setting rule
State the first display interface information.
The acquisition module 1001, further includes：Correcting module 1104,
The correcting module 1104 for being projected to display interface, obtains the 3rd display interface information after the projection,
According to the 3rd display interface Information revision the first display interface information.
As shown in figure 11, the device of the adjustment view field further includes：Detection module 1101,
The detection module 1101, after in the focal length for changing lens for first focal length, to the display interface
Projection when the display interface projection is mismatched with the first display interface information, notifies acquisition module 1001；
The acquisition module 1001 is additionally operable to project to the display interface again, obtains the after the projection the 4th and shows
Show interface information, it is the 3rd focal length to obtain lens current focus, is determined according to the 4th display interface information and the 3rd focal length
The distance of projector equipment and display interface；
The zoom modules 1002 are additionally operable to the distance according to the projector equipment and display interface and first display
Interface information determines the value of the 4th focal length, is the 4th focal length by the Focussing of lens.
Here, position and/or size of the first display interface information for display interface.The second display interface letter
Breath, the 3rd display interface information, position and/or the size that the 4th display interface information is the picture being projected on display interface.
In practical applications, the acquisition module 1001, zoom modules 1002, the detection module 1101, described
During information acquisition module 1102, described image processing module 1103, the correcting module 1104 can be by being located on mobile terminal
Central processor (CPU, Central Processing Unit), microprocessor (MPU, Micro Processor Unit), number
Signal processor (DSP, Digital Signal Processor) or field programmable gate array (FPGA, Field
Programmable Gate Array) etc. realizations.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
- A kind of 1. method for projector equipment, which is characterized in that the described method includes：Obtain the first display interface information；Obtain the distance of projector equipment and display interface；First focal length is determined according to the distance and the first display interface information, is described the by the Focussing of lens One focal length.
- 2. according to the method described in claim 1, it is characterized in that, the distance for obtaining projector equipment and display interface, bag It includes：It is projected to display interface, obtains the second display interface information after projection, determine lens current focus as the second focal length, root The distance of the projector equipment and display interface is determined according to the projection size and the second focal length.
- 3. according to the method described in claim 1, it is characterized in that, the first display interface information of the acquisition includes：Display interface picture is obtained, the display interface picture is handled according to setting rule to obtain the first display circle Face information.
- 4. according to the method described in claim 1, it is characterized in that, after the first display interface information of the acquisition, also wrap It includes：It is projected to display interface, the 3rd display interface information after the projection is obtained, according to the 3rd display interface information Correct the first display interface information.
- 5. method according to any one of claims 1 to 4, which is characterized in that it is described by the Focussing of lens be described After first focal length, further include：It is projected to display interface, when the display interface of projection and the first display interface information mismatch,It is projected again to the display interface, obtains the 4th display interface information after the projection, obtain lens current focus For the 3rd focal length, the distance of projector equipment and display interface is determined according to the 4th display interface information and the 3rd focal length；The value of 4th focal length is determined according to the distance and the first display interface information of the projector equipment and display interface, It is the 4th focal length by the Focussing of lens；Until when the display interface and the first display interface information match of projection, terminate adjustment.
- 6. a kind of device for projector equipment, which is characterized in that described device includes：Acquisition module, zoom modules；Wherein,The acquisition module for obtaining the first display interface information, obtains the distance of projector equipment and display interface；The zoom modules, for determining the first focal length according to the distance and the first display interface information, by lens Focussing be first focal length.
- 7. device according to claim 6, which is characterized in that the acquisition module is additionally operable to：It is projected to display interface, obtains the second display interface information after the projection, determine that lens current focus is burnt for second Away from determining the distance of the projector equipment and display interface according to the projection size and the second focal length.
- 8. device according to claim 6, which is characterized in that the acquisition module includes：At information acquisition module, image Module is managed, wherein,Described information acquisition module, for obtaining display interface picture；Described image processing module, it is aobvious for being handled to obtain described first to the display interface picture according to setting rule Show interface information.
- 9. device according to claim 8, which is characterized in that the acquisition module further includes：Correcting module for being projected to display interface, obtains the 3rd display interface information after the projection, according to the described 3rd Display interface Information revision the first display interface information.
- 10. according to any device of claim 6 to 9, which is characterized in that described device further includes detection module,The detection module is used for, and is projected to display interface, and the display interface of projection and the first display interface information are not Timing notifies acquisition module；The acquisition module is additionally operable to project to the display interface again, obtains the letter of the 4th display interface after the projection Breath, it is the 3rd focal length to obtain lens current focus, and projector equipment is determined according to the 4th display interface information and the 3rd focal length With the distance of display interface；The zoom modules are additionally operable to the distance according to the projector equipment and display interface and the first display interface information It determines the value of the 4th focal length, is the 4th focal length by the Focussing of lens.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092313.XA CN108124145A (en) | 2016-11-30 | 2016-11-30 | A kind of method and device for projector equipment |
| PCT/CN2017/096563 WO2018099128A1 (en) | 2016-11-30 | 2017-08-09 | Method and device used in projection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092313.XA CN108124145A (en) | 2016-11-30 | 2016-11-30 | A kind of method and device for projector equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108124145A true CN108124145A (en) | 2018-06-05 |
Family
ID=62227414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611092313.XA Withdrawn CN108124145A (en) | 2016-11-30 | 2016-11-30 | A kind of method and device for projector equipment |
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| Country | Link |
|---|---|
| CN (1) | CN108124145A (en) |
| WO (1) | WO2018099128A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769234A (en) * | 2019-09-29 | 2020-02-07 | 深圳市火乐科技发展有限公司 | Projector focusing method based on ultrasonic waves, projector and related product |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114827562A (en) * | 2022-03-11 | 2022-07-29 | 深圳海翼智新科技有限公司 | Projection method, projection device, projection equipment and computer storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806989A (en) * | 2009-02-13 | 2010-08-18 | 宏碁股份有限公司 | Projection display system |
| CN103309133A (en) * | 2012-03-12 | 2013-09-18 | 联想(北京)有限公司 | Projection method and electronic equipment |
| CN104062831A (en) * | 2013-03-22 | 2014-09-24 | 卡西欧计算机株式会社 | Projection Apparatus And Projection Method |
| CN104536249A (en) * | 2015-01-16 | 2015-04-22 | 深圳市中兴移动通信有限公司 | Method and device for regulating focal length of projector |
| CN104750443A (en) * | 2013-12-31 | 2015-07-01 | 联想(北京)有限公司 | Display control method and electronic equipment |
| CN105824180A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Method and device for regulating focal length of projector |
| CN106028010A (en) * | 2016-06-17 | 2016-10-12 | 联想(北京)有限公司 | Display control method and device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200412469A (en) * | 2003-01-02 | 2004-07-16 | Lite On Technology Corp | Automatically focusing method for projector and projector using this method |
| JP5834615B2 (en) * | 2011-08-18 | 2015-12-24 | 株式会社リコー | PROJECTOR, ITS CONTROL METHOD, ITS PROGRAM, AND RECORDING MEDIUM CONTAINING THE PROGRAM |
| CN103179363B (en) * | 2011-12-23 | 2017-05-03 | 技嘉科技股份有限公司 | Projector and image calibration method for same |
| CN106154721B (en) * | 2015-04-27 | 2021-01-01 | 中兴通讯股份有限公司 | Distance measuring method, automatic focusing method and device |
-
2016
- 2016-11-30 CN CN201611092313.XA patent/CN108124145A/en not_active Withdrawn
-
2017
- 2017-08-09 WO PCT/CN2017/096563 patent/WO2018099128A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806989A (en) * | 2009-02-13 | 2010-08-18 | 宏碁股份有限公司 | Projection display system |
| CN103309133A (en) * | 2012-03-12 | 2013-09-18 | 联想(北京)有限公司 | Projection method and electronic equipment |
| CN104062831A (en) * | 2013-03-22 | 2014-09-24 | 卡西欧计算机株式会社 | Projection Apparatus And Projection Method |
| CN104750443A (en) * | 2013-12-31 | 2015-07-01 | 联想(北京)有限公司 | Display control method and electronic equipment |
| CN104536249A (en) * | 2015-01-16 | 2015-04-22 | 深圳市中兴移动通信有限公司 | Method and device for regulating focal length of projector |
| CN105824180A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Method and device for regulating focal length of projector |
| CN106028010A (en) * | 2016-06-17 | 2016-10-12 | 联想(北京)有限公司 | Display control method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769234A (en) * | 2019-09-29 | 2020-02-07 | 深圳市火乐科技发展有限公司 | Projector focusing method based on ultrasonic waves, projector and related product |
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| WO2018099128A1 (en) | 2018-06-07 |
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